Gap calibration method for paired heating rollers of composite material

Abstract

The invention relates to a gap calibration method for paired heating rollers of a composite material, and belongs to the field of carbon fiber production. The method includes following steps: using amechanical feeler gauge for calibration, wherein the gap between the two ends of the paired heating rollers is adjusted to a design value; starting the heating rollers in pairs to enable the heating rollers to rotate at a low speed in a normal working direction; placing two pure lead wires in the two ends of the roller surface of the heating roller at the same time, so that the lead wires rotate along with the heating roller and are subjected to plastic deformation under extrusion of the paired heating rollers, and after the lead wires rotate along with the heating roller by a certain distance, reversing the heating roller to release the lead wires; when the lead wire is extruded by the heating roller to deform, measuring the size of the lead wire by using a micrometer, wherein data of multiple positions can be measured, and when the measured data of the multiple positions are consistent, the data is a measured actual value; adjusting the calibration value of the displacement sensor according to the measured actual value, and calibrating the displacement sensor; adjusting the gap between the paired heating rollers according to the measured values displayed by the displacement sensors, so that the measured values displayed by the sensors on two sides are the same.

Description

technical field [0001] The invention belongs to the field of carbon fiber manufacture, and specifically relates to a gap correction method for paired heating rollers of composite materials. Background technique [0002] As we all know, during the use of compound machine / coating machine, it is necessary to set different gap values ​​of pairs of heating rollers according to the finished thickness and processing technology of different prepregs / adhesive films, and the gap between pairs of heating rollers The accuracy of the value determines the performance of the finished prepreg. In existing production equipment, the gap between a pair of heating rollers is measured by a high-precision displacement sensor, but the gap value of the high-precision displacement sensor needs to be checked regularly during its initial use and use. The traditional calibration method is to adjust the heating rollers to the appropriate gap and measure the gap between the pair of heating rollers by in...

AI Technical Summary

Problems solved by technology

In addition, due to the method of inserting the feeler gauge into the gap, this kind of measurement and calibration requires a lot of experience of the operator, and incorrect measurement methods are likely to cause errors. When the heating roller is heated, the measurement is easy to cause burns due to the small size of the feeler gauge. Danger

Therefore, this traditional measurement method has the disadvantages of large measurement error, dangerous operation, and being affected by operating experience.

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